Rubber sealing plug for solid-state capacitor

Abstract

The utility model provides a rubber sealing plug for a solid-state capacitor, and belongs to the field of capacitors. The problem that an existing capacitor electrolyte is easy to volatilize is solved. The rubber sealing plug for the solid-state capacitor comprises a rubber plug base body with two lead holes, and further comprises a fixing piece which allows a lead to penetrate out and is used for fixing and sealing the lead, a through hole which is convenient for the lead to penetrate out and be fixed is formed in the center of the fixing piece in a penetrating mode, and the lead is connected into the through hole in a penetrating mode and is in transition fit connection with the through hole. The cross section of the fixing piece is of a T-shaped structure, a plurality of sealing parts used for improving the sealing strength are arranged at the lower end of the fixing piece, the sealing parts are sequentially distributed at intervals along the outer wall of the lower end of the fixing piece and are of an inclined structure from top to bottom, and a sealing gap is formed between every two adjacent sealing parts. The sealing part can be embedded into the inner wall of the lead hole, and a plurality of sealing cavities are formed. The sealing structure has the advantage of high sealing performance.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the capacitor field relates to a rubber seal, especially in a kind of rubber seal for solid-state capacitor. BACKGROUND

[0002] At present, the capacitor rubber plug on market, it includes plug body and is set on plug body for lead wire passes through lead wire hole, when lead wire passes through its lead wire and is fixedly connected with circuit board in capacitor, since capacitor is fixedly connected on circuit board by lead wire, when capacitor is tilted or shaken due to other influences and the lead wire hole of traditional capacitor rubber plug and the gap left by passing through lead wire hole are larger, the shaking generated is easy to cause lead wire to be bent and abraded even to cause the damage of lead wire, to affect the service life of capacitor, even directly cause the damage of capacitor and reduce its use intensity. SUMMARY

[0003] The utility model discloses a kind of rubber seal for solid-state capacitor to solve the above problems, to solve the above problems in view of the above problems existing in prior art.

[0004] The utility model discloses a kind of rubber seal for solid-state capacitor, including the rubber plug base body with lead wire hole, the number of lead wire hole is 2, it is characterized in that, still include the fixed part for lead wire and for the fixed sealing of lead wire to pass out;

[0005] The fixed part center is provided with the through hole that is convenient for lead wire to pass out and fixed, is penetrated;

[0006] The lead wire is connected in the through hole inside, and is transitionally cooperated with the through hole connection;

[0007] The fixed part cross section is T-shaped structure setting, is provided with several sealing parts for improving sealing strength in the fixed part lower end portion;

[0008] Several sealing parts are sequentially spaced distribution along its fixed part lower end portion outer wall, and are inclined structure setting from top to bottom;

[0009] Two adjacent sealing parts have sealing gap, by the fixed part axial downward pressure, its sealing part can be embedded into lead wire hole inner wall, and form multiple sealing cavities;

[0010] The sealing part and fixed part are integrally formed structure, and can be extruded inlay in lead wire hole inside.

[0011] In the above-mentioned rubber seal for solid-state capacitor, the fixed part is axially pressed into the lead wire hole inside, and by several sealing parts extrusion deformation and embedding into lead wire hole inner wall, to realize fixed on the upper end of lead wire hole.

[0012] The lower end of the fixing member is provided in an inclined circular table structure, and the sealing part is provided in an upward inclined structure.

[0013] The upper end of the fixing member is provided in a circular arc structure, facilitating the lower end of the fixing member to be pressed into the lead hole.

[0014] Compared with the prior art, the rubber sealing plug for solid-state capacitors has a simple structure, the through hole of the fixing member and the lead are in transition fit, the fixing member is continuously pressed into the lead hole in the axial direction, the sealing part is embedded into the inner wall of the lead hole through the structure design of the lower end of the fixing member and the sealing part, multiple sealing cavities are formed, a multi-layer sealing structure is achieved, the problem of electrolyte penetration and volatilization through the lead hole is solved, and the service life of the capacitor and the working efficiency of the capacitor are greatly prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a schematic view of the solid-state capacitor rubber sealing plug.

[0016] Figure 2 is a schematic view of the solid-state capacitor rubber sealing plug.

[0017] Figure 3 is a schematic view of the fixing member of the solid-state capacitor rubber sealing plug.

[0018] Figure 4 is Figure 2 is a schematic view of the local enlarged structure at A in the fixing member.

[0019] In the figure, 1 is a rubber plug base body, 2 is a fixing member, 3 is a through hole, 4 is a sealing part, 5 is a sealing cavity, and 6 is a sealing gap. DETAILED DESCRIPTION

[0020] The following is a specific embodiment of the present application and a further description of the technical scheme of the present application in combination with the drawings, but the present application is not limited to these embodiments.

[0021] As Figure 1 , Figure 2 , Figure 3 , Figure 4As shown, the rubber sealing plug for solid-state capacitor comprises a rubber plug base body 1 with lead hole, the number of lead hole is 2, and further comprises a fixing part 2 for lead wire to pass out and for lead wire fixation sealing, a through hole 3 is provided at the center of the fixing part 2 for facilitating lead wire to pass out and fixation, the lead wire is connected to the inside of the through hole 3 and is in transition fit connection with the through hole 3, the cross section of the fixing part 2 is in T-shaped structure, a plurality of sealing parts 4 for improving sealing strength are arranged at the lower end of the fixing part 2, the plurality of sealing parts 4 are arranged in sequence and are spaced apart along the outer wall of the lower end of the fixing part 2 and are in inclined structure from top to bottom, the sealing gap 6 is provided between two adjacent sealing parts 4, the sealing part 4 can be embedded into the inner wall of the lead hole by pressing the fixing part 2 axially downward, and a plurality of sealing cavities 5 are formed, the sealing part 4 is in one-piece structure with the fixing part 2 and can be embedded into the inside of the lead hole by extrusion.

[0022] The above structure is simple in design, the lead wire is in transition fit with the through hole 3 of the fixing part 2, the fixing part 2 is pressed axially into the inside of the lead hole, and the sealing part 4 can be embedded into the inner wall of the lead hole and a plurality of sealing cavities 5 are formed by the structure design of the lower end of the fixing part 2 and the sealing part 4, a multi-layer sealing structure is realized, the problem of electrolyte penetration and volatilization through the lead hole is solved, and the service life of the capacitor and the working efficiency of the capacitor are greatly prolonged.

[0023] Further, in order to embed the fixing part 2 into the inner wall of the lead hole, the fixing part 2 is pressed axially into the inside of the lead hole, and the plurality of sealing parts 4 are extruded and deformed and embedded into the inner wall of the lead hole, so as to be fixed on the upper end of the lead hole.

[0024] Further, in order to improve the sealing performance of the lead hole, the lower end of the fixing part 2 is in inclined circular table structure, the sealing part 4 is in upward inclined structure, and the fixing part 2 is made of nitrile rubber material with high temperature resistant and elastic sealing.

[0025] Further, in order to facilitate the fixing part 2 to press into the lead hole, the upper end of the fixing part 2 is in circular arc structure, and the lower end of the fixing part 2 is pressed into the inside of the lead hole.

[0026] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art of the present application can make various modifications or supplements to the described specific embodiments or use similar ways to replace them, without deviating from the spirit of the present application or exceeding the scope defined by the appended claims.

[0027] Although the terms are used frequently in this document, the possibility of using other terms is not excluded. The use of these terms is only for the convenience of describing and explaining the essence of the present application; any interpretation as any additional limitation is contrary to the spirit of the present application.

Claims

1. A rubber seal plug for solid electrolytic capacitors comprising a plug base (1) with lead holes, the number of which is two, characterized in that, It also includes the fixed part (2) for lead wire and for lead wire fixed sealing; The fixed part (2) is provided with a through hole (3) in the center for lead wire to pass through and fixed; The lead wire is connected to the inside of the through hole (3) and is in transition fit connection with the through hole (3); The fixed part (2) is provided with a T-shaped structure in cross section, and a plurality of sealing parts (4) for improving the sealing strength are arranged at the lower end of the fixed part (2); A plurality of sealing parts (4) are arranged in sequence and spaced apart along the outer wall of the lower end of the fixed part (2) and are arranged in an inclined structure from top to bottom; There is a sealing gap (6) between two adjacent sealing parts (4), and by pressing the fixed part (2) axially downward, the sealing part (4) can be embedded into the inner wall of the lead hole and form a plurality of sealing cavities (5); The sealing part (4) and the fixed part (2) are integrally formed and can be extruded and embedded in the lead hole.

2. A rubber seal plug for solid electrolytic capacitors according to claim 1, characterized in that The fixed part (2) is pressed axially downward into the lead hole, and the sealing part (4) is extruded and deformed and embedded into the inner wall of the lead hole, so as to be fixed on the upper end of the lead hole.

3. The rubber seal plug for solid electrolytic capacitors according to claim 1, wherein The lower end of the fixed part (2) is provided in an inclined circular table structure, the sealing part (4) is provided in an upward inclined structure, and the fixed part (2) can be made of nitrile rubber material with high temperature resistant and elastic sealing.

4. The rubber seal plug for solid electrolytic capacitors according to claim 1, wherein The upper end of the fixed part (2) is provided in a circular arc structure, which is convenient for the lower end of the fixed part (2) to be pressed into the lead hole.

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